Trenton

$53+ Cheap flights from Chicago (CHI) to Trenton, NJ (TTN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — TTN
Jul 7 — Jul 141
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Cheap flight deals from Chicago to Trenton

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Trenton (TTN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 2, 2025.

Round-trip from

$190
(Priceline)

One-way from

$53
(Priceline)

Popular in

December

Cheapest in

January

Average price

$191
From Chicago (CHI) to Trenton-Mercer
One-way flight from Chicago (CHI) to Trenton-Mercer
Highest demand for flights based on searches. 6% potential increase in price ($14 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from Chicago to Trenton

Cheapest flights from Chicago to Trenton
Explore the most affordable flight options available from Chicago to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:01 amORD - TTN
1 stop5h 21mFrontier
Mon 8/185:15 pmTTN - ORD
1 stop7h 50mFrontier
Deal found 7/2$190

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Trenton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 2, 2025.
Use the filters below to find and compare flights from Chicago to Trenton that are best for you.

Fly from

Chicago

Fly to

Trenton

Route

Depart

Return

Price

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Fri 8/15

5:01 am-11:22 am

1 stop5h 21m

Trenton-Mercer

Mon 8/18

5:15 pm-12:05 am

1 stop7h 50m

$190

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Mon 7/28

5:01 am-11:22 am

1 stop5h 21m

$53

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Sat 7/5

10:43 am-11:59 pm

2 stops12h 16m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Chicago to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Trenton

What is the cheapest month to book a flight from Chicago to Trenton, New Jersey?

Currently, January is the cheapest month in which you can book a flight from Chicago to Trenton, New Jersey (average of $73). Flying from Chicago to Trenton, New Jersey in June is currently the most expensive (average of $153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to TTN?

Find hourly flight availability from Chicago to Trenton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2025.

It’s typically best to fly out from Chicago to Trenton, New Jersey at noon. Doing so could potentially save you 76% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Trenton

Get insights into the airlines that provide service to Trenton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trenton. Reviews last updated July 2, 2025.
Read through reviews of airlines operating flights from Chicago to Trenton, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

4.5

Food

4.7

Overall

5.9

Boarding

6.2

Crew

6.8

Comfort

5.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Entertainment

4.5

Food

4.7

Overall

5.9

Boarding

6.2

Crew

6.8

Comfort

5.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Trenton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Trenton from Chicago?

    For a flight from Chicago to Trenton, you will be flying into Trenton-Mercer. Trenton-Mercer (TTN) is just 4.8 mi from the center of the city. Trenton-Mercer is the only Trenton airport and it handles 0 inbound flights from Chicago per day. 1 airline has flights to Trenton-Mercer from Chicago on a regular basis.

  • What is the cheapest airline to fly from Chicago to Trenton, New Jersey round-trip?

    According to our current data, Frontier ($190), offers the cheapest pricing from Chicago to Trenton, New Jersey.

  • Can I find deals for flights from Chicago to Trenton that include hotel bookings?

    Yes. In addition to deals on Chicago to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Trenton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Trenton.

  • Can I find deals for business class flights from Chicago to Trenton?

    Yes. Cheapflights offers flight deals from Chicago to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Trenton, New Jersey?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Trenton, New Jersey (average of $73). Flying from Chicago to Trenton, New Jersey in June is currently the most expensive (average of $153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Chicago to Trenton

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Chicago to Trenton

Discover the top airline that operate flights from Chicago to Trenton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$201FlexibilityNo cancel feeOn-time62%

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